Leiden is a historical city with buildings that go back to medieval times, most of which are still inhabited. Like in Amsterdam, these buildings are largely protected and kept in their original state. For this reason, you will rarely see one of these houses painted in a bright color—except for this one, which is a rosy shade of pink. The pink house was built in 1635. Architecturally, it isn’t all that different from the hundreds of other houses from the 17th century. Despite that, it is claimed to be the…